Front end chain paralleling device for long chain belt

Abstract

The present invention belongs to the field of zipper machine equipment, and relates to a front-end chain paralleling device for a long chain belt, comprising a front-end traction wheel and a traction wheel motor, a sprocket groove is formed on the traction wheel, both sides of the sprocket groove are cloth belt pressing surfaces, a pressing belt is arranged on the cloth belt pressing surface, a chain paralleling seat and a chain paralleling pressure plate are arranged in the chain output direction of the traction wheel, a chain paralleling channel is formed between the chain paralleling seat and the chain paralleling pressure plate, the chain paralleling pressure plate is connected to the protruding end of the chain paralleling cylinder, and the chain paralleling cylinder drives the chain paralleling pressure plate to approach or move away from the chain paralleling seat to open and close the chain paralleling channel; a pull head sensing device is also arranged on the chain paralleling seat; the device has the advantages of simple structure and can adapt to long distances.

Description

Technical Field

[0001] The utility model belongs to the field of zipper machine equipment and relates to a front end chain paralleling device for a long chain belt. Technical Background

[0002] The zipper threading and chaining machine is a fully automatic device that completes the chaining process after putting the slider on the chain belt. Traditional chaining mechanisms are set on the side of the chain threading device. Because some mechanisms are related, the length of the chain is limited. When it is necessary to form a special zipper with a particularly long chain belt, the horizontal movement distance of the linear module is not enough, so the chain belt that has not been chained is longer, and the opening between the two sub-chains of the chain belt that has not been chained is too large. When the material is discharged later, the opening will cause the chain belt to be entangled. Summary of the invention

[0003] In view of the above problems, the present invention provides a front end chain paralleling device for a long chain belt, which has the advantages of simple structure and can adapt to long-distance chain paralleling.

[0004] The purpose of the utility model is achieved in this way:

[0005] A front-end chain paralleling device for a long chain belt comprises a front-end traction wheel and a traction wheel motor, a sprocket groove is formed on the traction wheel, both sides of the sprocket groove are cloth belt pressing surfaces, a pressing belt is arranged on the cloth belt pressing surface, a chain paralleling seat and a chain paralleling pressure plate are arranged in the chain-out direction of the traction wheel, a chain paralleling channel is formed between the chain paralleling seat and the chain paralleling pressure plate, the chain paralleling pressure plate is connected to the protruding end of the chain paralleling cylinder, and the chain paralleling cylinder drives the chain paralleling pressure plate to approach or move away from the chain paralleling seat to open and close the chain paralleling channel; a pull head sensing device is also arranged on the chain paralleling seat.

[0006] Through the above arrangement, the traction wheel drives the chain to pull out the chain. When the pull head sensing device senses the pull head, the chain paralleling cylinder drives the chain paralleling pressure plate to approach the chain paralleling seat to reduce the chain paralleling channel to a width smaller than the pull head. Then the traction wheel drives the chain belt to retreat in the opposite direction. The pull head is blocked by the reduced chain paralleling channel, thereby realizing chain paralleling. The length can be changed as needed by controlling the distance of the reverse rotation of the traction wheel motor.

[0007] The utility model is further configured as follows: a chain paralleling groove is formed on the chain paralleling seat, and the chain paralleling pressing plate matches the chain paralleling groove.

[0008] The design of the chain slot makes the chain more stable.

[0009] The utility model is further configured as follows: an arc-shaped baffle is provided at the lower end of the pressure plate, an arc-shaped baffle surface is provided at the lower end of the parallel chain groove, and the arc-shaped baffle and the arc-shaped baffle surface form a parallel chain channel correspondingly.

[0010] Through the design of the arc-shaped baffle bar and the arc-shaped baffle surface, when the arc-shaped baffle bar and the arc-shaped baffle surface are closed, the chain teeth move on the arc-shaped surface, which is not easy to be damaged and is smoother.

[0011] The utility model is further configured as follows: the pull head sensing device is a proximity switch, and the sensing end of the proximity switch is arranged on the bottom plate of the parallel chain groove.

[0012] Through the setting of the proximity switch, when the proximity switch senses a signal, the chain cylinder is delayed to extend the pressure plate into the chain slot, and then the traction wheel motor is controlled to reverse for a period of time, and then the chain cylinder is reset, and the traction wheel motor also resumes forward rotation.

[0013] The utility model is further configured as follows: a mounting seat is also provided on the back side of the parallel chain groove, a guide hole is provided on the mounting seat, and the proximity switch passes through the guide hole.

[0014] The utility model is further configured as follows: a limit block is also provided on the proximity switch, and the limit block is arranged on a side of the guide hole away from the chain seat.

[0015] By setting the limit block, the limit shaft is prevented from sliding, making the sensing more accurate.

[0016] The utility model is further configured as follows: three compression belt guide wheels are arranged around the traction wheel, the three compression belt guide wheels are arranged in a triangle, the compression belt is wound around the three guide wheels, and the traction wheel is arranged on one side so that the compression belt on the side is concave inward.

[0017] The utility model is further configured as follows: the compression belt guide wheel is provided with two guide grooves matching the compression belt, and a spacing groove corresponding to the chain tooth groove is provided between the two guide grooves.

[0018] Through the above arrangement, the compression belt also plays a certain guiding role on the chain belt.

[0019] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: the traction wheel drives the chain to pull out the chain, and when the pull head sensing device senses the pull head, the chain paralleling cylinder drives the chain paralleling pressure plate to approach the chain paralleling seat to reduce the chain paralleling channel to a width smaller than the pull head, and then the traction wheel drives the chain belt to move backward in the opposite direction, and the pull head is blocked by the reduced chain paralleling channel, thereby realizing chain paralleling. This front-end chain paralleling method is mainly used on very long special chain belts, and the length can be changed as needed, and it only needs to control the distance of the reverse rotation of the traction wheel motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the front-end parallel chain device.

[0022] Figure 2 This is a schematic diagram of the structure of the front-end chain paralleling device when the pressure belt is removed.

[0023] Figure 3 This is one of the structural schematic diagrams of the chain seat and parallel cylinders.

[0024] Figure 4 This is the second structural diagram of the chain seat and parallel cylinders.

[0025] 1-traction wheel; 2-traction wheel motor; 3-sprocket groove; 4-cloth belt pressing surface; 5-pressing belt; 6-chain seat; 7-chain pressure plate; 8-chain cylinder; 9-chain groove; 10-arc-shaped baffle; 11-arc-shaped baffle surface; 12-proximity switch; 13-bottom plate; 14-sensing end; 15-mounting seat; 16-guide hole; 17-limiting block; 18-pressing belt guide wheel; 19-guide groove; 20-spacer groove. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] A front-end chain paralleling device for a long chain belt comprises a front-end traction wheel 1 and a traction wheel motor 2, a sprocket groove 3 is formed on the traction wheel 2, both sides of the sprocket groove 3 are cloth belt pressing surfaces 4, a pressing belt 5 is provided on the cloth belt pressing surface 4, the pressing belt 5 presses the cloth belt tightly against the cloth belt pressing surface 4, thereby increasing the friction between the cloth belt and the traction wheel, making it difficult for the cloth belt to slip, a chain paralleling seat 6 and a chain paralleling plate 7 are provided in the chain-out direction of the traction wheel 1, a chain paralleling channel is formed between the chain paralleling seat 6 and the chain paralleling plate 7, the chain paralleling plate 7 is connected to the protruding end of a chain paralleling cylinder 8, and the chain paralleling cylinder 8 drives the chain paralleling plate 7 to approach or move away from the chain paralleling seat 6 to open and close the chain paralleling channel; a pull head sensing device is also provided on the chain paralleling seat 6.

[0028] Through the above arrangement, the traction wheel 1 drives the chain to pull out the chain. When the pull head sensing device senses the pull head, the chain cylinder 8 is controlled to drive the chain pressure plate 7 to approach the chain seat 6 to shrink the chain channel to a width smaller than the pull head. Then the traction wheel 1 is controlled to drive the chain belt to move backward in the opposite direction. The pull head is blocked by the shrunken chain channel, thereby realizing chain connection. The length can be changed as needed by controlling the distance of the reverse rotation of the traction wheel motor.

[0029] The chain paralleling seat 6 is formed with a chain paralleling groove 9, and the chain paralleling pressing plate 7 matches the chain paralleling groove 9. Through the design of the chain paralleling groove 9, the chain paralleling is made more stable.

[0030] The lower end of the chain paralleling pressure plate 7 is provided with an arc-shaped baffle 10, and the lower end of the chain paralleling groove 9 is provided with an arc-shaped baffle surface 11, and the arc-shaped baffle 10 and the arc-shaped baffle surface 11 form the chain paralleling channel accordingly. Through the design of the arc-shaped baffle 10 and the arc-shaped baffle surface 11, when the arc-shaped baffle 10 and the arc-shaped baffle surface 11 are closed, the chain teeth move on the arc surface, which is not easy to damage the chain teeth and is smoother.

[0031] The pull head sensing device is a proximity switch 12, and the sensing end 13 of the proximity switch 12 is arranged on the bottom plate 14 of the chain paralleling groove. Through the setting of the proximity switch 12, when the pull head approaches the proximity switch, the proximity switch 12 senses a signal, delays the control of the chain paralleling cylinder 8 to extend the chain paralleling plate 7 to the chain paralleling groove 9, and then controls the traction wheel motor 2 to reverse for a period of time, which is pre-programmed according to the required chain paralleling length. After the chain paralleling is completed, the chain paralleling cylinder 8 is reset, and the traction wheel motor 2 also resumes forward rotation.

[0032] A mounting seat 15 is also provided on the back of the parallel chain slot 9, and a guide hole 16 is provided on the mounting seat 15. The proximity switch passes through the guide hole 16. A limit block 17 is also provided on the proximity switch, and the limit block is arranged on the side of the guide hole away from the parallel chain seat. The limit block 17 is arranged to prevent the limit shaft from sliding, so that the sensing is more accurate.

[0033] Three compression belt guide wheels 18 are arranged around the traction wheel 1. The three compression belt guide wheels 18 are arranged in a triangle. The compression belt is wound around the three guide wheels. The traction wheel 1 is arranged on one side so that the compression belt 5 on this side is concave inward.

[0034] The compression belt guide wheel 18 is provided with two guide grooves 19 matching the compression belt, and a spacing groove 20 corresponding to the chain tooth groove 3 is provided between the two guide grooves 19. Through the above arrangement, the compression belt also plays a certain guiding role on the chain belt.

[0035] The utility model has the characteristics of simple structure and can adapt to long distances.

[0036] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A front end chain paralleling device for a long chain belt, comprising a front end traction wheel and a traction wheel motor, a sprocket groove is formed on the traction wheel, both sides of the sprocket groove are cloth belt pressing surfaces, and a pressing belt is provided on the cloth belt pressing surface, characterized in that: A chain seat and a chain pressure plate are provided on the chain-out direction of the traction wheel, and a chain channel is formed between the chain seat and the chain pressure plate. The chain pressure plate is connected to the protruding end of the chain cylinder, and the chain cylinder drives the chain pressure plate to approach or move away from the chain seat to open and close the chain channel; a pull head sensing device is also provided on the chain seat.

2. A front end chain paralleling device for a long chain belt according to claim 1, characterized in that: A chain paralleling groove is formed on the chain paralleling seat, and the chain paralleling pressing plate matches the chain paralleling groove.

3. A front end chain paralleling device for a long chain belt according to claim 2, characterized in that: An arc-shaped baffle is provided at the lower end of the pressure plate, and an arc-shaped baffle surface is provided at the lower end of the parallel chain groove. The arc-shaped baffle and the arc-shaped baffle surface form a parallel chain channel correspondingly.

4. A front end chain paralleling device for a long chain belt according to claim 3, characterized in that: The pull head sensing device is a proximity switch, and the sensing end of the proximity switch is arranged on the bottom plate of the parallel chain groove.

5. A front end chain paralleling device for a long chain belt according to claim 4, characterized in that: A mounting seat is also provided on the back of the parallel chain groove, and a guide hole is provided on the mounting seat, and the proximity switch passes through the guide hole.

6. A front end chain paralleling device for a long chain belt according to claim 5, characterized in that: The proximity switch is also provided with a limit block, which is arranged on a side of the guide hole away from the chain seat.

7. A front end chain paralleling device for a long chain belt according to claim 1, characterized in that: Three compression belt guide wheels are arranged around the traction wheel, and the three compression belt guide wheels are arranged in a triangle. The compression belt is wound around the three guide wheels, and the traction wheel is arranged on one side so that the compression belt on the side is concave inward.

8. A front end chain paralleling device for a long chain belt according to claim 7, characterized in that: The compression belt guide wheel is provided with two guide grooves matching the compression belt, and a spacing groove corresponding to the chain tooth groove is provided between the two guide grooves.

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